CCS and Power Systems
Advanced Energy Systems - Solid Oxide Fuel Cells
High-Temperature Viscous Sealing Glasses for Solid Oxide Fuel Cells
Performer: Mo-Sci Corporation
Project No: SC0002491
Figure 1. Demonstration of a hermetic seal made from SS441/Glass 73/NiO-YSZ bilayer.
This seal survived 103 thermal cycles (room temperature to 750 °C) in wet forming gas
at a differential pressure of 0.5 psi (26 torr) for more than 3,500 hours.
Figure 2. Demonstration of re-sealing of a glass seal. Sandwich coupon (a) crack caused
by high cooling rate quench (b) crack healing after re-heating to 725 °C for 2 hours.